Edgetech PORT LF, Руководство пользователя по оборудованию

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3-1
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SECTION 3: INSTALLATION
This section contains the information relative to the basic set up of EdgeTech’s Push Off Release
Transponder (PORT-LF) including important details concerning the orientation of the Unit on a mooring
structure.
NOTE: The transponder will operate in any orientation. However,
specifics of the intended deployment will mandate special installation
concerns.
3.1 Acoustic
Efforts should be made to ensure that there is a clear acoustic path between the PORT-LF Transducer and
the source (typically a dunking Transducer from a deck Unit). Structural elements of a mooring system,
which have significantly different acoustic impedance than that of seawater, will cause absorption or
reflection of acoustic signals that will degrade the operation of the Unit. Top causes of Unit degradation
include: syntactic foam, plastic floats, and floatation, including glass spheres. Any float placed physically
close to the Transducer can create a blind area in the Transducers beam pattern.
3.2 Mechanical
The Release Load is held through the Top Pad Eye, Housing and Release Link. There are isolation shoulder
washers on the Top Pad Eye to prevent electrical contact with the mooring. In some installations (such as
a trawl resistant bottom mooring) the Unit needs to be secured to the structure. It is important to verify
that the Release Link is not obstructed in its motion, which could prevent it from disengaging.
The release mechanism is designed for in-line loads; side loading will severely degrade performance.
Generally, the Release Link is treated as a disposable item. It is used to electrically isolate the release from
the rest of the mooring. The Release Link is fabricated from ‘Ultem,’ a very high strength plastic. Arbitrary
choice of an alternate Release Link could result in jamming, galvanic corrosion, or mooring failure due to
insufficient strength.
3.2.1 Bio-Fouling Prevention
Anti-fouling paint can be used to prevent bio-fouling on the Housing and other external parts. However,
note that the system is made of aluminum, so do not use paints that will react with it. Tin based paints
may be used. NEVER USE Copper-based paints.